大学物理 ›› 2024, Vol. 43 ›› Issue (8): 42-.doi: 10.16854/j.cnki.1000-0712.230317

• 大学生园地 • 上一篇    下一篇

夸克物质相变中气泡和液滴形成与演化的研究

石浚希,毛鸿,舒崧   

  1. 1. 湖北大学 物理学院,湖北 武汉430062;2. 中国科学院大学 国际理论物理中心,北京100190;
    3. 杭州师范大学 物理学院,浙江 杭州311121
  • 收稿日期:2023-08-26 修回日期:2023-12-21 出版日期:2024-09-01 发布日期:2024-09-18
  • 作者简介:石浚希(2002—),男,湖北黄石人,湖北大学物理学院2019级本科生.

Research of the nucleation of bubbles and droplets in the quark-hadron phase transition

SHI Junxi1,2, MAO Hong3, Shu Song1   

  1. 1. Department of Physics , Hubei University, Wuhan, Hubei 430062, China; 
    2. International Centre for Theoretical Physics Asia-Pacific, University of Chinese Academy of Science, Beijing 100190, China; 
    3. Department of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
  • Received:2023-08-26 Revised:2023-12-21 Online:2024-09-01 Published:2024-09-18

摘要: 本文利用有限温度场论的方法及Friedberg-Lee模型,推导了有限温度下夸克物质相变过程中的有效势,场方程以及气泡和液滴的物理学量相关公式,并在不同边界条件下采用数值方法严格求解出了气泡解与液滴解.结合气泡或液滴核合成唯象模型,分析了气泡和液滴在相变过程中的形成机制,讨论了其对相变的影响.同时利用数值结果研究了气泡和液滴的物理性质,并将两类结果进行了对比,阐明了气泡或液滴在相变过程中的变化规律和物理图像.

关键词: 夸克禁闭模型, 有限温度场论, 气泡动力学, 表面张力

Abstract: By using finite temperature field theory and F-L model, we derive the effective potential at finite temperature as well as the field equations and related physical quantities of bubbles and droplets in the first order phase transition of the quark matter. Under different boundary conditions the bubble or droplet solutions are numerically solved. Through bubble or droplet nucleation phenomenological model, the formation mechanism of bubbles and droplets in the quark/hadron phase transition is analyzed. The properties of bubbles and droplets are numerically studied by comparison through which the physical pictures and variation features of bubbles and droplets in the phase transition have been illustrated. Our methods and results may have possible applications in the study of the system of QGP phase transition for experiments on heavy ion collisions and the neutron star structures or the evolution of the cosmological phase transition in the early universe.


Key words: quark model for confinement, finite temperature field theory, bubble dynamics, surface tension